10663821312 has 136 divisors (see below), whose sum is σ = 28864979904. Its totient is φ = 3501195264.

The previous prime is 10663821277. The next prime is 10663821331. The reversal of 10663821312 is 21312836601.

It is a super-2 number, since 2×10663821312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14352013 + ... + 14352755.

Almost surely, 2^10663821312 is an apocalyptic number.

10663821312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10663821312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14432489952).

10663821312 is an abundant number, since it is smaller than the sum of its proper divisors (18201158592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10663821312 is an frugal number, since it uses more digits than its factorization.

10663821312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 10663821312 in words is "ten billion, six hundred sixty-three million, eight hundred twenty-one thousand, three hundred twelve".